hitunglah luas daerah lingkaran dengan diameter
a.28m
b.35m
c.76cm
e.100cm
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a.28m
b.35m
c.76cm
e.100cm
a. 22 ÷ 7 × 14 × 14
= 44 × 14
= 616 cm²
b. 22 ÷ 7 × 35 × 35
= 110 × 35
= 3850 cm²
c. 3,14 × 38 × 38
= 4534,16
e. 3,14 × 50 × 50
=7850 cm²
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